News tagged with extraterrestrial civilizations

Should we beam messages into deep space, announcing our presence to any extraterrestrial civilizations that might be out there? Or, should we just listen? Since the beginnings of the modern Search for Extraterrestrial ...

Scientists want to contact extraterrestrial civilizations. Some applause the effort. Others say this is not a good plan at all. The idea is for messages encoded in radio signals to be sent repeatedly for ...